介词：典型题例：
1. Your performance in the driving test didn’t reach the required standard —____, you failed.
A. in the end B. after all C. in other words D. at the same time
2. —You seem to show interest in cooking.
—What? ________, I'm getting tired of it.
A. On the contrary B. To the contrary C. On the other hand D. To the other hand
3 . ________ production up by 60%, the company has had another excellent year.
A. As B. For C. With D. Through
